Book or pad



S. E. BRICK.

BOOK 0R PAD.

APPLICATION FILED A PR.26, 1919.

Patented June 1, 1920.

' I Za Va/d r.

I SAMUEL. E. BRICK, OF SALINA, KANSAS.

- norm on BAD.

Continuation oflapplication Serial No.

' Toall whom it ma'y concern:

Be itfknown thatI, SAMUEL E.IBRI GK,:Of Salina, in'the county of Salineand State of Kansas, have invented certain new anduseful Improvements inBooks or Pads; and I do 'hereby declare the following to be a full,clear, and exact. description of the invention,

' suclras will enable others skilled inthe art to which. it appertainsto make and use the same. v

Myinvention relates to a series of leaves bound together, as books,tablets or pads of paper'or other-material.

An object of my invention is the production'of aseries of leaves suchasa hooker tablet: having a'non friable flexible, elastic or Xieldablenon-tacky backing. v nother-object-of my invention isthe pro I ductionof a bOOkEOI' tablet having the charvMy invention overcomes thesedifiiculties' acteristics above set-forth which will retain" such'characteristics for along period of time.

It, is customary in tableting to pile a stack of leaves or pages upon abase sheet of heavy material and. secure the stack by applying adhesivepaste to oneor two edges of the stack;either with or without'a super orextra backing which is usually necessary and which usually extends overpart of the base sheet-.1 Owing to the composition of the adhesiveheretofore used the tablet is rigid at.

its pasted edge or edges and it cannot be bent v "or folded withoutbreaking. the friable ad-y 'hesive binding; and. an intermediate sheetorsheets cannot be removed without disturbing, the other sheets. Extrasheets, such for example as carbon paper, cannot be inserted withoutpartially destroying the pad.

and furthermore a tablet, pad or bookmade according to. my inventioncanibe opened I flat or'can be rolledup without damaging the pad. Myinvention has many other ad- 'vant'a es'which-will be obvious.v

,In t e. drawing, Figure 1 shows a tablet in position for use, and Fig.2 shows the man,-

ner in-which the tablet may be bent. Fig. 3 shows a book made accordingto .my' invention. I I

Referring to Fig. 1, 1 indicates a series of sheets of'paper inthe formof a pad bound together at: the edge 2 and referring to Fig. 3, 3designates the two-covers of a book which comprises the. pages 4 boundtogether along-the line of theedgeso'according tomy invention. I

, Specification of Letters Patent. Patented J 11161, 19 2) 274;,506,filed' February 1; 1919.. 1919. Serial N 292,956. v

This application filed April 26,

' My adhesive binding is a rubber-like mass and is preferably made asfollows: 35 parts of smoked plantation or fine Para raw rubber and thesame 'amountofunsmoked first latex or best grade unsmoked plantation rawrubber.- a're thoroughly mixed together by passing them throughsuitablehigh tension I crushing rollers heated to ablood heat,then about 10parts ofsilica oxids or magnesium v carbonate or fossil flour, 13 partsof calcium carbonate, 6 parts of calcium hydroxid and 1 part of coloringmatter are added thoroughly incorporated and mixed with the rubber: Thisoperation requires approximately fifteen minutes. gallons of a.suitable'solvent consisting of about 70 parts of carbon tetrachlorid and30 parts of benzol .are placed in a mixing drum and into this 100 poundsof the rubber composition I'is 'droppedand thoroughly stirred -About oneounce of deodorant is added foreach gallon ofsolvent, this deodorantconsisting of equal parts, 0il of cloves, preferably C. P., andof gumcamphor, preferably C. P. The fillers usedshould be very fine and thecalcium car 'bonate should beamorphous. The'composition is thenready tobe applied. V

The silica .oxids -or magnesium carbonate or fossil .flour'and thecalcium carbonate are to a great'extent equivalents of each other inthat they give bulk to the composition without detracting from itsbinding qualities unless used in too great excess. v

I prefer the proportions of the various ingredientsas given above butthese may be varied-to a. great extent without departing from-the spiritof my invention and some of the ingredients" may even be, omitted provided a composition is obtained-which is flexible, elastic ,'"yieldabl'eand which will not remain. tacky nor become brittlei:

- Anyasuitablesolventfor rubbei may be usedbut I prefer that-indicated.above on account of its non-infiammability and because it leaves thefilm of applied rubb'er free from :tackiness ina short time.

process-set forth is homogeneous in'thatit is of a uniform naturethroughout, having no separate elements,'layers}or structures.

The composition resulting from the I believe I am the first to make 'a'book tor pad with a binder consisting solely ofa j homeogenouscomposition having-a rubber V The only tableting compounds heretoforeknown to base .requiring no fabric base;

meare glues .or' rubber compositions which include a cloth or fabric orthose in which at an additional cost, their durability is increased. Butapart from this feature of r durability the glue binders at no time canproduce a tablet having the characteristics of mine, namely, yieldmg,non-friable and elastic. This is the primary feature of my invention.Among the resulting advantages to the'user of the finished product arethe following: My tablet may be opened at any point to withdraw a sheetand it will separate easily and its edge which has previonsly been heldby the binder will be found clean. Doing this will not disturb any ofthe adj acent sheets. The same is true when a tab let or book is openedat any desired point to insert a carbon sheet. This is not true oftablets having glue binders. Either the whole ad will break at the pointwhere it is opene or the leaves will not open sufliciently to permit theinsertion of the carbon sheet. If the effort be made to remove a leaffrom a pad having-a gluebinder the edge of the leaf usually tears andleaves a ragged edge. In warm weather a pad havmg a glue binder presentsa sticky surface.

If sheets of it be continuously inserted in a typewriter the particlesof glue will adhere to the platen or cylinder and seriously affect thework of the type.

N 0 such disadvantage attaches to the sheets removed from a pad ortablet bound by a compound embod ing my invention.

mm the viewpoint of the user of my compound, that is, the manufacturerof the books, pads ortablets the following advantages are of persuasiveforce:-My compound is applied cold and with no waste of time. The gluepreparations are usually applied hot and time is required for their heating; in consequence I save the cost of the heating medium. My compoundrequires no particular skill in preparation b the user. It is made asherein described eady for his use. The glue preparations are frequentlyover cooked and have to be thrown away. Any portions of my compoundaccumulating on the padding table may be redissolved and used again.Glue preparations thus accumulating cannot be used. My compound 'driesin five to seven minutes The glue compound requires from one to tenhours to dry. I can make av tablet with carbon sheets alternating withthe leaves and not stain the leaves. Glue dries too slowly for thispurpose and while it is drying the moisture penetrates the stock andcauses the carbon composition to run and stain the leaves. A tablet madewith my compound will not affect the cutting knife while a glue compoundwill gum and dull it. My compound, when found too thick for the desireduse, maybe thinned; a glue compound when thinned too much loses'itsstrength and it is then a complete loss. If my" compound is thinned toomuch it may beexposed to the air and it will thicken to the desiredconsistency. My compound will work in the same way and produce the sameresults throughout all seasons of the year and under all conditions;glue is affected by the weather and it has been my experience that notwo batches work the same. While the foregoing comparisons apply mainlyto hot glues, "yet they are also true of cold glues,

with the exception of the time and expense required for heating the hotglues. All cold glues thicken with exposure and cannot be thinned whenthey become set. They spoil quickly in the can and for this reasoncannot be handled in large quantities. Iain enabled to can and ship mycompound in any quantity without fear of its deterioration.

rom the foregoing it .will be seen that my process and the resultingcompound are of equal advantage to both the manufacturer and theultimate user of the books, pads or tablets on which' thecompound isused. This application is a continuation of my former application filed.February 1,1919,

Serial No. 274,556, as to common subject matter. M V

I intend the term rubber to includeall rubber gums having the usefulproperties in a Iiad or book herein set forth. claim as my invention:

1. A series of sheets or leaveslying one upon the other and boundtogetheron an edge by a flexible, elastic, yieldable, dry: and non-tackyhomogenous binder containing rubber which -.-is adhesively attachedto'the leaving some parts of edges of the sheets but the edges free,. whereby .the binder between any adjacent sheets may be stretched slightlyto permit of inserting additional: sheets 7 loosely between the. boundsheets, anyone or more sheets may be torn from the binder withoutsubstantially injuring the binding of the remaining sheets, and theseries may be laid open flat at any point without substantially injuringthe binding of the sheets, the binding being capable of beingdecidedlyflexed without substantial injury thereto.

2. A series of sheets or leaves bound together by a homogenouscomposition of matter which is adhesively attached to an edge of thesheetsfand which comprises rubber and a filler, but leaving some partsof the edges free,

whereby the binder between any adjacent sheets may be stretched slightlyto permit of inserting additional sheets loosely between the boundsheets, any one or more sheets'may be torn from the binder 'withoutsubstantially injuring the binding of the remaining sheets, and theseries may be laid open fiat at any point without subtantially injuringthe binding of the sheets, the binding being capable of being decidedlyflexed Without substantial injury thereto.

3. A series of sheets or leaves bound together by a composition ofmatter consisting of smoked plantation orlfi'ne Para raw rubher,unsmoked first latex or best grade unsmoked plantation raw rubber, inertand absorbing fillers and calcium hydroxid.

4. A series of sheets or leavesbound together by a composition of matterconsisting of smoked plantation or fine Para raw rubber, unsmoked firstlatex or best grade unsmoked plantation raw rubber, inert "and absorbingfillers calcium hydroxid, coloring matter and a deodorant.

In testimony whereof I have signed this specification. v

SAMUEL E. BRICK.

